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Last modified
1/25/2010 7:11:13 PM
Creation date
10/5/2006 2:48:41 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
29
County
Larimer
Community
Fort Collins
Stream Name
Cache La Poudre River
Basin
South Platte
Title
Floodplain Information Report - Cache La Poudre River, Colorado, Volume I, Fort Collins, Larimer County
Date
10/1/1973
Designation Date
3/1/1974
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />, <br /> <br />j <br /> <br />Table} <br />FI~PeJkStJqes"ndDi5ch"r<1e5 <br />Cache la "'olJdrc f1iver.!J <br /> <br />Yedr Oate <br />1883 22 J~ne <br />11)84 20r-ay <br />11191 9 Juno <br />1900 29 I'lly <br />1901 " '" <br />1904 20 ~'ay <br />1909 " June <br />1914 2 June <br />1917 23 June <br />1918 20 June <br />1921 0 June <br />1923 15 June <br />1924 " Juno <br />1930 " "by <br />193R 22 Juno <br />1949 5 Juno <br /> <br />"eakDischJrqe. <br />c.t.s. <br /> <br />;,-t_"qe, Ft. <br /> <br />5.6 <br /> <br />7,90'.1 <br />6,850 <br />21,000 <br /> <br />5,C0::1 <br /> <br />7.5 <br /> <br />12,00-') <br />Y <br /> <br />5,900 <br />5,380 <br />7,000 <br />5,200 <br />5,230 <br /> <br />5.5 <br />U <br />5.6 <br />5.0 <br />7.' <br />C9 <br />7.9 <br /> <br />8,550 <br />7,440 <br />10,200 <br />("ISO <br />6,09(1 <br /> <br />6.4 <br /> <br />u <br /> <br />1/ <br /> <br />PeaK discharges in excoss of 5,000 c.f.~., fr~ U. s. r~olOGlc31 <br />Survey Water Supply Popors, ~Jqe ot mouth at c~ryon up~trnn~ fr~ <br />FortCQllins. <br /> <br />2/ <br /> <br />C"used ~y /a i lure of Chaolier5 L~k" D<r1. <br /> <br />51 <br /> <br />Gr(j3terth3n 13911100d. <br /> <br />u <br /> <br />Flood Joser rp~ lon5 <br /> <br />Among the first descriptions of floods on the Cache 13 <br />Poudre River Is " letter ~ritten by Antoine Jan;s, a F~cnch t~a~rer on <br />the ~iver ~~r tho rresent site of La~crte. He ~rote: <br /> <br />"Q~ t~e first day of J"rtO 1844, I stuck my stoke On a clah In <br />the v~ Iley . . . . At that time the st~ea'TlS '",or" a II very high." <br /> <br />An exf~a he~vy 5rtNpack ~uOm8nte<1 by a r~ln~torm On 9 June 1864 resulted <br />in furthe~ flooding on the C~che la Poud~e Rlve~. Hlsto~IBn Ansel Wat~ou5 <br />wrote of the 1864 flood: <br /> <br />"Fort Colli ns . . . . C>les its o~i'li nand first place 00 the <br />map to the InterventIon of a flood in the CaChe la Poud~e Rlve~. This <br />flood occurred on the last days of '~y and fl~sf days of June 1854 an~ <br />Issaldto have been the worst KllOrln by white rnen, He water .... <br />I nundatcd the va Iley f~om , luff ~o bluff with a to'-~ent that car,-Ied <br />Ewerythlng not firmly attached to the sol I with It. <br /> <br />"I t ca~~led out the toll brldgo ~t Laporte ~t 1l titTle when the <br />ClOvcment of emig~ntlon '",es1wa~d stalled on the b luff~ south 01 <br />L~Do~te. On thO 9th of June, an extraord Ina,-y ~a Insto~m S8t <br />in on the wot8rShed of the uppor pa~t of the river, ",elted the <;nC>l <br />In the higher altltudos and an eno~mous volume of wahr laden with <br />drlft.;ood, poured into the "I~o"~y ,",,0 lien channel, a~~ the <;u' len <br />roar 01 tho rushing stream a~ it bU~5t out of t~e canyon '~as ~eard <br />for a long distance. On reach I ng the pia ins, the wate~ 3P~ead out <br />and suome~ged the bottom lands from bluff to b luff to " derth of <br />"over,,1 feet. The storm occurred in the ofternoon and the raging <br />torront swoptdcwnth,-oughthesoldier5'Car:'p(atLnporto) in <br />the night almost 'd Ithout w ar"n I ng . the cam~ground" wore comp I etn I '/ <br />Sll-Jmorged 3nd only t!;e ~oofs 01 to" C~J i ns . . . wore v i5i:. Ie . . . <br /> <br />" <br />
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